Home / 231,645.20-347,273.40-120,837.20

Finding the Fourth Proportional to 231,645.20, 347,273.40 and 120,837.20

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Solution

The fourth proportional to 231,645.20, 347,273.40 and 120,837.20 is: 181,154.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,645.20 : 347,273.40 = 120,837.20 : x
  2. Step 2: Convert to fraction form
    231,645.20/347,273.40 = 120,837.20/x
  3. Step 3: Cross multiply
    231,645.20x = 347,273.40 × 120,837.20
  4. Step 4: Simplify right side
    231,645.20x = 41,963,545,290.48
  5. Step 5: Solve for x
    x = 41,963,545,290.48/231,645.20
  6. Step 6: Final answer
    x = 181,154.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.